公开(公告)号：US20250062319A1

公开(公告)日：2025-02-20

申请号：US18449261

申请日：2023-08-14

Applicant: GM Global Technology Operations LLC

Inventor： Jeffrey David Cain ,  Nicholas Paul William Pieczonka ,  Sayed Youssef Sayed Nagy ,  Zachary Hood ,  Shiba Adhikari

IPC: H01M4/36 ,  C25D7/00 ,  C25D9/02 ,  C25D9/04 ,  H01M4/04 ,  H01M4/62 ,  H01M10/0525 ,  H01M10/42

Abstract: A method is provided for pre-forming anode particles for use in lithium ion batteries. The pre-formed anode particles bear a solid electrolyte of a composition that cannot be formed in situ in the battery. The method includes providing a dispersion of anode precursor particles and an additive not found in the battery in a liquid electrolyte solution. Applying a voltage or current across the dispersion forms the solid electrolyte interphase, on the particles. These particles can be used in an electrode of a lithium ion battery.